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Method for a vehicle having an electric machine

A vehicle and wheel technology, applied in the field of vehicles with motors, can solve problems such as risk, discomfort and safety

Active Publication Date: 2014-02-05
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This can be interpreted by the driver as unpleasant or disturbing and in critical situations represents a safety risk

Method used

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  • Method for a vehicle having an electric machine
  • Method for a vehicle having an electric machine

Examples

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Embodiment Construction

[0021] figure 1 A vehicle 10 is shown with an electric drive machine 11 , a control unit 12 , a drive gear selector 13 and a battery 14 . The electric machine 11 is coupled, for example, to the front wheels 16 of the vehicle 10 and can apply a torque to the wheels 16 with a driving or braking effect. To drive the wheels 16 , the electric machine 11 draws energy from the battery 14 , and the electric machine 11 can feed energy back into the battery 14 when the wheels 16 are braked by the electric machine 11 . The drive gear selector 13 includes three drive gears R, N and D, which can be selected by the user of the vehicle by moving the selector lever 13 in the direction of the arrow 15 . The drive selector lever 13 can have other adjustment possibilities, for example a position P for parking the vehicle. However, only the aforementioned adjustments R, N and D are used in the description of the invention.

[0022] and figure 2 In connection, the operation of the vehicle 10 ...

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Abstract

The present invention relates to a method for a vehicle (10) having an electric machine (11). The electric machine (11) is coupled to at least one wheel (16) of the vehicle (10). The vehicle (10) can optionally be operated in at least a first operating mode (21) and a second operating mode (22). In the first operating mode (21), the electric machine (11) applies a torque to the wheel (16), and in the second operating mode (22) the electric machine (11) does not apply any torque to the wheel (16). In the method, a request for switching over between the first and the second operating modes (21, 22) is detected and the vehicle (10) is operated in a transition operating mode (23) if the request to switch over from the first operating mode (21) into the second operating mode (22) is detected. In the transmission operating mode (23), a torque is applied to the at least one wheel (16) counter to a rolling direction of the vehicle (10) for at least a predetermined time.

Description

technical field [0001] The invention relates to a method for a vehicle with an electric machine, in particular for an electric vehicle or a hybrid vehicle, and to a corresponding vehicle. Background technique [0002] In a vehicle with an electric machine as the drive machine, for example an electric vehicle or a hybrid vehicle, there are different characteristics and operating differences compared to a vehicle with an internal combustion engine as the drive machine. This concerns, for example, the operation of the vehicle at low speeds, since the electric machine can in principle be operated at any low rotational speed, whereas the internal combustion engine can generally only be operated in the range above a predetermined idling rotational speed. Another example is coasting, in which different decelerations can occur in electric vehicles due to recuperation. Since most vehicle users are only accustomed to the properties of a vehicle with an internal combustion engine, use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60L15/20
CPCB60L2240/80B60L2270/145B60W2540/12B60W30/18127B60W10/184B60W30/18054B60W2710/182B60W2510/101B60W2720/30B60W10/08B60W2710/083B60W2540/16Y02T10/72B60L15/20B60T7/04B60W20/00B60W30/182B60Y2200/91B60Y2200/92B60Y2300/18125B60Y2300/182Y02T10/62Y04S10/126B60W20/40
Inventor N.魏斯V.蒂亚姆通R.奥尔
Owner VOLKSWAGEN AG
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